KR101597290B1 - Manufacturing method for low iron-loss core material - Google Patents
Manufacturing method for low iron-loss core material Download PDFInfo
- Publication number
- KR101597290B1 KR101597290B1 KR1020090132565A KR20090132565A KR101597290B1 KR 101597290 B1 KR101597290 B1 KR 101597290B1 KR 1020090132565 A KR1020090132565 A KR 1020090132565A KR 20090132565 A KR20090132565 A KR 20090132565A KR 101597290 B1 KR101597290 B1 KR 101597290B1
- Authority
- KR
- South Korea
- Prior art keywords
- substrate
- iron loss
- core material
- alloy
- manufacturing
- Prior art date
Links
- 239000011162 core material Substances 0.000 title abstract description 22
- 238000004519 manufacturing process Methods 0.000 title abstract description 14
- 239000000758 substrate Substances 0.000 claims abstract description 42
- 229910052742 iron Inorganic materials 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 19
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 238000009792 diffusion process Methods 0.000 claims abstract description 14
- 229910021364 Al-Si alloy Inorganic materials 0.000 claims abstract description 11
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 7
- 230000003647 oxidation Effects 0.000 claims abstract description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 9
- 238000000137 annealing Methods 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 6
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims 2
- 238000001035 drying Methods 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 49
- 229910000831 Steel Inorganic materials 0.000 abstract description 12
- 239000010959 steel Substances 0.000 abstract description 12
- 238000005246 galvanizing Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 11
- 239000007789 gas Substances 0.000 description 6
- 229910018125 Al-Si Inorganic materials 0.000 description 5
- 229910018520 Al—Si Inorganic materials 0.000 description 5
- 239000000956 alloy Substances 0.000 description 5
- 238000003618 dip coating Methods 0.000 description 5
- 238000002844 melting Methods 0.000 description 5
- 230000008018 melting Effects 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 4
- 229910017082 Fe-Si Inorganic materials 0.000 description 2
- 229910017133 Fe—Si Inorganic materials 0.000 description 2
- 229910002796 Si–Al Inorganic materials 0.000 description 2
- 239000013065 commercial product Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 230000001603 reducing effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910000565 Non-oriented electrical steel Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 229910000702 sendust Inorganic materials 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/26—After-treatment
- C23C2/261—After-treatment in a gas atmosphere, e.g. inert or reducing atmosphere
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
- C23C2/024—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by cleaning or etching
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
- C23C2/12—Aluminium or alloys based thereon
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/12—Impregnating, heating or drying of windings, stators, rotors or machines
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Soft Magnetic Materials (AREA)
Abstract
저철손 코아소재의 제조방법이 개시된다. 본 발명의 일 실시예에 따른 저철손 코아소재의 제조방법은 Fe-3%Si의 전기강판으로 이루어진 기판을 제공하는 단계, 상기 기판의 산화방지를 위해 전처리 공정을 수행하는 단계, 상기 전처리 공정후 Al-Si 합금을 상기 기판상에 용융도금하는 단계 및 상기 용융도금된 기판을 확산 열처리하는 단계를 포함한다.A manufacturing method of a low iron loss core material is disclosed. The method of manufacturing a low iron loss core according to an embodiment of the present invention includes the steps of providing a substrate made of an Fe-3% Si steel sheet, performing a pretreatment process to prevent oxidation of the substrate, Al-Si alloy on the substrate, and diffusing heat treatment of the hot-dip coated substrate.
저철손, 코아소재, 용융도금, 확산열처리, Al-Si 합금 Low iron loss, core material, hot dip galvanizing, diffusion heat treatment, Al-Si alloy
Description
본 발명은 코아소재 제조방법에 관한 것으로, 보다 상세하게는 저철손 코아소재 제조방법에 관한 것이다.The present invention relates to a method of manufacturing a core material, and more particularly, to a method of manufacturing a core material of a low iron core.
전자기기용 코아 소재는 현재 Fe-Si계 전기강판을 사용하고 있으며 코아소재는 이러한 전자기기의 성능을 좌우하는 핵심요소이다. 철손은 전기강판에서 직접 발생되는 에너지 손실이며 총에너지 손실의 25% 수준을 차지하고 있으며 1차 및 2차 동손도 코아소재의 특성에 따라 크게 영향을 받으므로 실제 코아소재의 특성은 전자기기, 특히 모터에 있어서 매우 핵심적인 요소라고 할 수 있다. Co-based materials for electronic equipment currently use Fe-Si-based electrical steel sheets, and core materials are a key factor in determining the performance of such electronic equipment. Iron loss is an energy loss directly generated from electric steel sheet, which accounts for 25% of the total energy loss, and is greatly influenced by the characteristics of primary and secondary copper cores. Therefore, It is a very important factor in
따라서 기존의 전기강판 보다 특성이 우수한 소재로 대체된다면 철손뿐 만아니라 코일권수 또한 줄일 수 있으므로 동손도 크게 낮아지는 효과를 얻을 수 있다. Therefore, if the material is replaced with a material having better characteristics than the existing electric steel sheet, not only the iron loss but also the coil winding number can be reduced.
특히, 최근에 들어 전자기적 특성이 우수한 코아소재에 대한 요구가 증대되기 시작하였으며 코스트 측면에서도 모터의 경우, 제조비용중 코아소재의 비중이 50% 이상이 되기 때문에 저렴하면서도 고기능을 발현하는 코아소재 개발이 기대되고 있다. Particularly, recently, demand for core materials having excellent electromagnetic characteristics has begun to increase. In terms of cost, since the proportion of core material in manufacturing cost is more than 50%, cost-effective core material development Is expected.
전기강판은 Si 함량에 따라 전자기 특성이 크게 좌우되며 Si함량이 6.5%가 되면 자기특성이 피크에 달하기 때문에 최근 일본에서 제조기법을 개발하여 이전에는 제조가 불가능하였던 6.5%Si 강판을 상용화하였으나 제품단가가 기존소재의 약 10배로 너무 고가이고 가공성 문제로 상업적 적용에 매우 제한적이라는 단점을 갖고 있다.Electrolytic characteristics depend on the Si content of the electrical steel sheet, and when the Si content reaches 6.5%, the magnetic properties reach a peak. Recently, Japan has developed a manufacturing technique to commercialize the 6.5% Si steel sheet, The unit price is about 10 times as high as the existing material and it has a disadvantage that it is very limited in commercial application due to processability problem.
본 발명은 Fe-Si 전기강판상에 Al 합금을 코팅하여 열처리를 행하여 철손이크게 향상된 코아소재의 제조방법을 제공하고자 한다.An object of the present invention is to provide a method of manufacturing a core material in which an iron alloy is coated on an Fe-Si electrical steel sheet and subjected to heat treatment, thereby remarkably improving iron loss.
본 발명의 일 실시예에 따른 저철손 코아소재의 제조방법은, Fe-3%Si의 전기강판으로 이루어진 기판을 제공하는 단계, 상기 기판의 산화방지를 위해 전처리 공정을 수행하는 단계, 상기 전처리 공정후 Al-Si 합금을 상기 기판상에 용융도금하는 단계 및 상기 용융도금된 기판을 확산 열처리하는 단계를 포함한다.A method of manufacturing a low iron loss core material according to an embodiment of the present invention includes the steps of providing a substrate made of an Fe-3% Si steel sheet, performing a pretreatment process to prevent oxidation of the substrate, And then subjecting the hot-dip coated substrate to a diffusion heat treatment.
본 발명의 의한 저철손 코아소재의 제조방법에 따르면 다음과 같은 효과가 있다.The method for producing a low iron loss core material according to the present invention has the following effects.
Fe-3%Si 강판을 기판으로 하여 기판상에 Al-Si 합금을 용융도금하고 확산열처리를 행함으로써 기판내에 우수한 연자기 특성을 나타내는 Fe-Al-Si계 합금을 형성시킴으로써 자기특성이 향상된 코아소재를 제공할 수 있다.Al-Si alloy is formed on the substrate by using an Fe-3% Si steel sheet as a substrate and diffusion heat treatment is performed to form an Fe-Al-Si alloy exhibiting excellent soft magnetic properties in the substrate, Can be provided.
아래에서는 첨부한 도면을 참고하여, 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자가 용이하게 실시할 수 있도록 본 발명의 실시예를 상세히 설명한다. 본 발명은 여러 가지 상이한 형태로 구현될 수 있으며 여기에서 설명하는 실시예에 한정되지 않는다. 본 발명을 명확하게 설명하기 위해서, 설명과 관계없는 부분은 도면에서 생략하였으며 명세서 전체에서 유사한 부분에 대해서는 유사한 도면 부호를 붙였다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may be embodied in many different forms and is not limited to the embodiments described herein. In order to clearly illustrate the present invention, parts not related to the description are omitted from the drawings, and like parts are denoted by similar reference numerals throughout the specification.
본 발명의 일 실시예에 따른 저철손 코아소재의 제조방법은 Fe-3%Si의 전기강판으로 이루어진 기판을 제공하는 단계, 상기 기판의 산화방지를 위해 전처리 공정을 수행하는 단계, 상기 전처리 공정후 Al-Si 합금을 상기 기판상에 용융도금하는 단계 및 상기 용융도금된 기판을 확산 열처리하는 단계를 포함한다.The method of manufacturing a low iron loss core according to an embodiment of the present invention includes the steps of providing a substrate made of an Fe-3% Si steel sheet, performing a pretreatment process to prevent oxidation of the substrate, Al-Si alloy on the substrate, and diffusing heat treatment of the hot-dip coated substrate.
본 발명인 저철손 코아소재 기술을 안출함에 있어서, 용융도금 전처리 기술, 용융도금 기술, 확산열처리 기술 등이 기술적 핵심요소로 구성된다. 즉, 기판인 Fe-3%Si상에 형성된 산화막을 제거하고 기판이 산화하지 않도록 상태를 유지시키면서 용융욕에 강판을 침지하여 Al-Si합금을 용융도금하고 진공분위기에서 일정시간 동안 열확산을 시켜 기판표면에 Fe-Si-Al층을 형성시킴으로써 전자기특성 향상을 도모하는 것이다.In finding out the technology of the low iron loss core material of the present invention, the technical elements of the hot-dip coating pretreatment technique, the hot-dip coating technique, and the diffusion heat treatment technique are constituted as technical core elements. That is, the oxide film formed on the Fe-3% Si substrate as the substrate is removed and the steel sheet is immersed in the molten bath while the substrate is not oxidized so as to hot dip the Al-Si alloy in the vacuum atmosphere for a predetermined period of time, And the Fe-Si-Al layer is formed on the surface, thereby improving the electromagnetic characteristics.
코팅물질은 Al-Si계 합금으로 하여 전자기 특성을 도모하였다. Al-Si합금을 코팅물질로 한 이유는 기판과 Al-Si과의 상호확산에 의해 생성되는 Fe-Al-Si 3성 분계가 우수한 전자기 특성을 나타내는 Sendust (Fe85Al6Si9)합금조성과 유사하기 때문이다.The coating material was an Al-Si-based alloy and its electromagnetic characteristics were improved. The reason why the Al-Si alloy is used as the coating material is that the Fe-Al-Si three-component produced by the interdiffusion between the substrate and Al-Si exhibits excellent electromagnetic properties, such as Sendust (Fe 85 Al 6 Si 9 ) Because it is similar.
Al-Si계 합금은 12.6%의 공정점과 비교적 낮은 577 ℃의 공정온도를 갖는 공정합금 부근의 조성으로 코팅하게 되면 낮은 온도에서도 용이하게 용융도금을 할 수 있는 장점이 있다. Si 조성이 많게 되면 융점이 높아지고 이로 인하여 열처리 온도 또한 높아지게 되며 반면 아공정 조성영역인 Si 양을 적어지면 용질금속의 저항효과가 미미하므로 Si 조성은 12 ~ 20 wt%가 바람직하다.Al-Si alloys have the advantage of being able to easily perform hot-dip coating even at low temperatures if they are coated with a composition near a process alloy having a process point of 12.6% and a relatively low process temperature of 577 ° C. As the Si composition increases, the melting point increases and the heat treatment temperature also increases. On the other hand, when the amount of Si, which is a sub-process composition region, is decreased, the resistance of the solute metal is insignificant, so that the Si composition is preferably 12 to 20 wt%.
코팅물질인 Al-Si을 코팅함에 있어 기판은 3% Si무방향성 전기강판을 사용하는 게 바람직하다. 그 이유는 되도록 기판의 Si 량이 많아져야 열처리 온도 및 확산시간 등 공정측면에서 경제적으로 유리하기 때문이다.In coating the coating material Al-Si, it is preferable to use a 3% Si non-oriented electrical steel sheet as the substrate. The reason for this is that the amount of Si in the substrate must be increased so that it is economically advantageous in view of process steps such as heat treatment temperature and diffusion time.
용융도금 공정은 먼저, 두께가 0.35 mm인 전기강판(3%Si, 0.003%C)을 기판에 형성된 유기물 및 산화물을 세정하기 위하여 아세톤 및 염산용액으로 전처리를 행한다. 염산은 약 15v%로 하여 유기물을 세정한 기판을 20분간 침지한 후 수세하여 건조시킨다. 건조된 시편은 재산화방지를 위해서 Ni을 수 미크론 두께로 코팅한다.In the hot-dip coating process, an electric steel sheet (3% Si, 0.003% C) having a thickness of 0.35 mm is pre-treated with acetone and hydrochloric acid solution to clean the organic substances and oxides formed on the substrate. The substrate with the hydrochloric acid of about 15 v% is dipped in the substrate for 20 minutes, washed with water and dried. The dried specimen is coated with Ni to a thickness of several microns to prevent re-oxidation.
선도금 물질을 Ni로 택한 이유는 Ni의 환원성이 매우 우수하기 때문이며 Ni이외에도 순철 등 환원성이 우수한 순금속이면 가능하다. 코팅은 증착 혹은 전기도금으로 가능하다.The reason why the lead gold material is selected as Ni is because it is very excellent in the reducing property of Ni, and it is possible to be made of a pure metal excellent in reducing property such as pure iron in addition to Ni. The coating can be deposited or electroplated.
도금은 불활성 분위기에서 기판을 예열한 후 30 - 60초간 침지를 행하였으며 Ar 분위기에서 상온으로 냉각을 한다.The substrate is preheated in an inert atmosphere and then immersed for 30 to 60 seconds and cooled to room temperature in an Ar atmosphere.
도금된 강판소재는 열처리로에 장입하고 배기를 10-6 torr대에 진입한 후 확산열처리를 행한다.Plated steel sheet material is charged into a heat treatment furnace, and after the exhaust gas enters 10 -6 torr zone, diffusion heat treatment is performed.
또한 본 발명에서는 기판의 두께를 고려할 때 코팅표면에서의 확산거리 범위가 약1.0 mm 정도면 충분하므로 확산시간은 60분 내지 100분 이내, 온도는 1000℃ 내지 1100 ℃의 범위 이내가 양호한 확산열처리 조건일 수 있다.In the present invention, considering the thickness of the substrate, it is sufficient that the diffusion distance range on the surface of the coating is about 1.0 mm. Therefore, the diffusion time is within 60 to 100 minutes and the temperature is within the range of 1000 to 1100 DEG C, Lt; / RTI >
이는 온도가 너무 높게 되면 확산속도가 빨라져 제조공시간을 단축할 수 있으나 Al-Si조성의 융점이 낮아 Al-20% Si의 경우에도 700℃ 정도이므로 기판상에서 코팅물질이 부분적으로 용융하는 현상이 발생된다.This is because if the temperature is too high, the diffusion speed becomes faster and the production time can be shortened, but since the melting point of the Al-Si composition is low, the coating material is partially melted on the substrate because the Al- .
또한 확산시간은 공정코스트를 좌우하는 중요한 변수로 확산시간이 너무 길어지게 되면 생산성이 저하하며 반면에 확산시간이 너무 짧게 되면 기판 전체에 Fe-Al-Si합금 형성이 이루어지지 않기 때문이다.In addition, diffusion time is an important parameter that affects the process cost. If the diffusion time becomes too long, the productivity decreases. On the other hand, if the diffusion time is too short, the Fe-Al-Si alloy is not formed on the entire substrate.
이하에서는 실험예를 통하여 본 발명을 보다 상세하게 설명한다. 이러한 실험예는 단지 본 발명을 예시하기 위한 것이며, 본 발명이 여기에 한정되는 것은 아니다.Hereinafter, the present invention will be described in more detail with reference to experimental examples. These experimental examples are only for illustrating the present invention, and the present invention is not limited thereto.
실험예Experimental Example
본 발명의 일 실시예에 따른 저철손 코아소재 제조방법을 통하여 제조한 소재의 전자기 특성 및 포하자화를 검증하기 위하여 다음과 같은 조건의 시편을 제작하여 그 성능을 시험하였다. 시편제작 조건은 다음과 같다.In order to verify the electromagnetic characteristics and the patterning of the material produced through the method of manufacturing the low iron loss core material according to the embodiment of the present invention, the specimens having the following conditions were manufactured and their performance was tested. The specimen production conditions are as follows.
- 기판: 0.35 mm 두께의 전기강판 (3%Si, 1.45%Al, 0.23%Mn, 0.003%C)- Substrate: 0.35 mm thick electrical steel sheet (3% Si, 1.45% Al, 0.23% Mn, 0.003% C)
- 합금물질 조성: Al-20% Si- Alloy material composition: Al-20% Si
- 열처리조건: 900℃ 내지 1170℃- Heat treatment conditions: 900 ° C to 1170 ° C
- 확산시간: 5분 내지 90 분- Diffusion time: 5 to 90 minutes
용융도금하기 기판에 형성된 유기물 및 산화물을 세정하기 위하여 아세톤 및 염산용액으로 전처리를 행하였다. 염산은 약 15v%로 하여 유기물을 세정한 기판을 20분간 침지한 후 수세하여 건조시킨다. 건조된 시편은 재산화방지를 위해서 Ni을 1 미크론 정도 진공증착하여 코팅하였다.Hot Plating The pre-treatment was performed with acetone and hydrochloric acid solution to clean the organic substances and oxides formed on the substrate. The substrate with the hydrochloric acid of about 15 v% is dipped in the substrate for 20 minutes, washed with water and dried. The dried specimens were coated by vacuum deposition of about 1 micron Ni to prevent re-oxidation.
모합금은 용융도가니에 20%Si-Al합금을 Ar분위기에서 약 750 ℃로 가열하여 용해하였다. 용융도금시 코팅계면의 산화가 문제되므로 침지실험은 Ar가스에 약 3%수소를 혼합한 혼합가스를 사용하였으며 자체 제작한 용융챔버내에 가스를 purging하기전에 혼합가스에 포함되어 있는 수분을 되도록 제거하기 위하여 혼합가스를 Moisture trap을 통과한 후 용융챔버내에 주입하도록 하였다.The mother alloy was melted by heating a 20% Si-Al alloy in a melting furnace to about 750 ° C in an Ar atmosphere. Since the oxidation of the coating interface is a problem during the hot dip coating, the immersion test uses a mixed gas of about 3% hydrogen mixed with Ar gas and removes moisture contained in the mixed gas before the gas is purged into a self- The mixed gas was passed through a Moisture trap and injected into the melting chamber.
시편은 시편홀더를 이용하여 하강시켜 용융챔버내의 용탕 직상부에서 예열 한 후 약 50초간 침지를 행하였다. 침지 후 시편홀더를 상승시켜 Ar분위기의 냉각챔버에서 60초간 냉각후 시편을 취출하였다.The specimens were lowered using a specimen holder, preheated at a position just above the molten metal in the melting chamber, and immersed for about 50 seconds. After immersion, the specimen holder was lifted and cooled in a cooling chamber of Ar atmosphere for 60 seconds, and then the specimen was taken out.
용융도금 시편은 진공열처리로내에서 10-6 torr로 배기한 후 각각 5분, 30분, 60분 및 90분간 소둔하였다. 철손 및 포화자화 측정은 Single strip test를 이용하여 1.0T/50Hz의 조건으로 측정하였다.The specimens were annealed for 5, 30, 60, and 90 minutes, respectively, after evacuation at 10 -6 torr in a vacuum annealing furnace. The iron loss and saturation magnetization were measured at 1.0 T / 50 Hz using a single strip test.
도 1은 소둔온도를 1050 ℃로 고정하고 소둔시간을 5분, 30분, 60분, 90분 으로 하였을 때의 철손변화를 나타낸다. 90분 소둔의 경우는 환원도금시편이 0.83 W/kg 까지 감소하고 있으며 동일한 측정조건에서 기존의 무방향성 전기강판인 1.0 W/kg보다 감소하여 용융도금 공정을 통하여 철손특성을 향상시킬 수 있음을 확인하였다.Fig. 1 shows changes in iron loss when the annealing temperature was fixed at 1050 캜 and the annealing times were 5, 30, 60 and 90 minutes. In the case of annealing for 90 minutes, reduction plating specimens were reduced to 0.83 W / kg, and it was confirmed that the iron loss characteristics can be improved through the hot dip galvanizing process by decreasing the value of 1.0 W / kg, which is the conventional non- Respectively.
도 2는 고주파 철손특성을 파악하기 위해 측정한 것으로 철손의 주파수 특성 결과를 나타낸다. 고주파 철손 특성은 코아소재에 있어서 매우 중요한 파라미터이다.FIG. 2 is a graph showing the frequency characteristics of iron loss measured to determine high-frequency iron loss characteristics. The high frequency iron loss characteristic is a very important parameter in the core material.
도 2에 도시된 바와 같이, 주파수를 50Hz에서 400Hz까지 증가시키면서 1.0T에서 철손을 측정한 결과 주파수가 높아질 수록 철손은 증가하고 있으나 주파수가 증가함에 따라 본 발명예인 코아소재와 기존의 전기강판과의 철손의 차이가 크게 됨을 알 수 있다.As shown in FIG. 2, the core loss was measured at 1.0 T while increasing the frequency from 50 Hz to 400 Hz. As the frequency increased, the core loss increased. However, as the frequency increased, the core material of the present invention and the conventional electric steel sheet The difference in iron loss is large.
400Hz에서는 기존의 전기강판의 16.4에 비해 13.5로 크게 낮아져 본 발명을 통하여 제작된 시편이 향후 고주파 저철손 코아소재로의 가능성을 시사하고 있다고 판단된다.And it was 13.5 at 400Hz compared with 16.4 of the conventional electric steel sheet. Thus, it is considered that the specimen produced through the present invention may be a high-frequency low iron core material in the future.
검증결과를 비교예인 상용제품규격과 비교하면 다음의 표 1과 같다.The results of the verification are compared with commercial product standards, which are comparative examples, as shown in Table 1 below.
이상에서 본 발명의 실시예에 대하여 설명하였지만, 본 발명의 권리범위는 이에 한정되는 것이 아니고 특허청구범위와 발명의 상세한 설명 및 첨부한 도면의 범위 안에서 여러 가지로 변형하여 실시하는 것이 가능하고 이 또한 본 발명의 범위에 속하는 것은 당연하다.While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, And it goes without saying that they belong to the scope of the present invention.
도1은 본 발명의 일 실시예에 따른 소둔시간에 따른 철손 변화를 나타내는 도면이다.FIG. 1 is a graph showing changes in iron loss according to an annealing time according to an embodiment of the present invention. FIG.
도 2는 본 발명의 일 실시예에 따른 철손의 고주파 의존성을 나타낸 도면이다. FIG. 2 is a diagram illustrating high frequency dependency of iron loss according to an embodiment of the present invention. FIG.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020090132565A KR101597290B1 (en) | 2009-12-29 | 2009-12-29 | Manufacturing method for low iron-loss core material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020090132565A KR101597290B1 (en) | 2009-12-29 | 2009-12-29 | Manufacturing method for low iron-loss core material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20110075985A KR20110075985A (en) | 2011-07-06 |
| KR101597290B1 true KR101597290B1 (en) | 2016-02-25 |
Family
ID=44915933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020090132565A KR101597290B1 (en) | 2009-12-29 | 2009-12-29 | Manufacturing method for low iron-loss core material |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR101597290B1 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009072394A1 (en) * | 2007-12-03 | 2009-06-11 | Nippon Steel Corporation | Non-oriented electromagnetic steel plate having low high-frequency iron loss and process for producing the non-oriented electromagnetic steel plate |
| KR100917610B1 (en) | 2008-11-14 | 2009-09-17 | 한국에너지기술연구원 | Method for coating metallic interconnect of solid oxide fuel cell |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030035017A (en) * | 2001-10-29 | 2003-05-09 | 한국전력공사 | Powder Composition for Simultaneous Coating of Aluminum and Silicon on Metal Surfaces and Coating Method Thereof |
| KR101328704B1 (en) * | 2007-09-27 | 2013-11-14 | 재단법인 포항산업과학연구원 | Method for Manufacturing a Low Iron-Loss Core Material for Electrical Motors at High Frequency Ranges |
-
2009
- 2009-12-29 KR KR1020090132565A patent/KR101597290B1/en active IP Right Grant
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009072394A1 (en) * | 2007-12-03 | 2009-06-11 | Nippon Steel Corporation | Non-oriented electromagnetic steel plate having low high-frequency iron loss and process for producing the non-oriented electromagnetic steel plate |
| KR100917610B1 (en) | 2008-11-14 | 2009-09-17 | 한국에너지기술연구원 | Method for coating metallic interconnect of solid oxide fuel cell |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20110075985A (en) | 2011-07-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2684985B1 (en) | Process for producing hot-pressed member steel sheet | |
| JP6014681B2 (en) | Hot-dip galvanized steel sheet with excellent cryogenic bonding properties and manufacturing method thereof | |
| US8741075B2 (en) | Method for manufacturing a hot press-formed member | |
| JP5799997B2 (en) | Hot-dip galvanized steel sheet, alloyed hot-dip galvanized steel sheet excellent in appearance and plating adhesion, and methods for producing them | |
| JP6512412B2 (en) | Directional electromagnetic steel sheet and method of manufacturing the same | |
| JP5799996B2 (en) | Hot-dip galvanized steel sheet, alloyed hot-dip galvanized steel sheet excellent in appearance and plating adhesion, and methods for producing them | |
| KR20130076589A (en) | High strength galvanized steel sheet having excellent surface property and coating adhesion method for manufacturing the same | |
| CN107299306B (en) | A kind of method of medium managese steel hot-dip | |
| KR102635881B1 (en) | Method for manufacturing steel strip with improved adhesion of metal hot dip galvanized coatings | |
| CN108929991A (en) | A kind of hot-dip potassium steel and its manufacturing method | |
| KR101597290B1 (en) | Manufacturing method for low iron-loss core material | |
| KR20210145195A (en) | Method for manufacturing steel strip with improved bonding in hot dip plating | |
| JP2014114489A (en) | Method of producing molten zinc plated steel plate | |
| JP4325442B2 (en) | Method for producing hot dip galvanized steel | |
| JP6341382B2 (en) | Oriented electrical steel sheet and manufacturing method thereof | |
| JP6137002B2 (en) | Method for producing hot-dip galvanized steel sheet and alloyed hot-dip galvanized steel sheet, hot-dip galvanized steel sheet and alloyed hot-dip galvanized steel sheet | |
| CN114106593A (en) | Paint for oriented silicon steel surface coating, oriented silicon steel plate and manufacturing method thereof | |
| JP6677082B2 (en) | Magnetic shield steel sheet and method of manufacturing the same | |
| JP5211657B2 (en) | Method for producing hot-dip galvanized steel sheet | |
| KR20090118290A (en) | Method for manufacturing high strength alloyed hot-dip galvanized steel sheet having excellent surface appearance and the steel sheet by the same method | |
| CN113166875A (en) | Electrical steel sheet and method for manufacturing the same | |
| US20220220598A1 (en) | Method for producing a steel strip with improved bonding of metallic hot-dip coatings | |
| JP2783457B2 (en) | Manufacturing method of hot-dip Zn-Al plated steel sheet | |
| KR101328704B1 (en) | Method for Manufacturing a Low Iron-Loss Core Material for Electrical Motors at High Frequency Ranges | |
| KR20060002467A (en) | Fabrication methods of high silicon-iron sheet by electrodeposition process for electrical applications |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E701 | Decision to grant or registration of patent right | ||
| GRNT | Written decision to grant |